package com.itheima.controller;

import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * 用户操作
 */
@RestController
@RequestMapping("/user")
public class UserController {


    //获取当前登录用户名
    @RequestMapping("/getUsername")
    public Result getUsername(){
        //当SpringSecurity认证之后，会将登录的用户信息保存到上下文对象中
        User user = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
        System.out.println(user);

        if(user != null){
            String username = user.getUsername();
            return new Result(true, MessageConstant.GET_USERNAME_SUCCESS, username);
        }

        return new Result(false, MessageConstant.GET_USERNAME_FAIL);
    }
}
